Satisfaction 1988

From Amazon:
When a four-girl, one-guy rock group called The Mystery gets its first gig at a club, it's not just a chance to perform, it's also an opportunity to get out of the inner city¿and see what life is all about. Fresh out of high school, the group spends the summer playing a club in an exclusive beach resort. There they find romance, adventure and, for the lead singer Jennie Lee (Bateman), a dilemma: to pursue her budding career or return to school. Liam Neeson and Julia Roberts co-star. (read more)